345230145531 has 12 divisors (see below), whose sum is σ = 498682621008. Its totient is φ = 230145651024.

The previous prime is 345230145499. The next prime is 345230145577. The reversal of 345230145531 is 135541032543.

345230145531 is a `hidden beast` number, since 3 + 4 + 52 + 30 + 1 + 45 + 531 = 666.

It is not a de Polignac number, because 345230145531 - 2⁵ = 345230145499 is a prime.

It is a super-2 number, since 2×345230145531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345230145031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 360495 + ... + 905768.

It is an arithmetic number, because the mean of its divisors is an integer number (41556885084).

Almost surely, 2^345230145531 is an apocalyptic number.

345230145531 is a deficient number, since it is larger than the sum of its proper divisors (153452475477).

345230145531 is a wasteful number, since it uses less digits than its factorization.

345230145531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296562 (or 1296559 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 345230145531 in words is "three hundred forty-five billion, two hundred thirty million, one hundred forty-five thousand, five hundred thirty-one".